Home / 139,729,758.48-192,828,384.45-77,008,118.13

Finding the Fourth Proportional to 139,729,758.48, 192,828,384.45 and 77,008,118.13

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Solution

The fourth proportional to 139,729,758.48, 192,828,384.45 and 77,008,118.13 is: 106,271,929.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,729,758.48 : 192,828,384.45 = 77,008,118.13 : x
  2. Step 2: Convert to fraction form
    139,729,758.48/192,828,384.45 = 77,008,118.13/x
  3. Step 3: Cross multiply
    139,729,758.48x = 192,828,384.45 × 77,008,118.13
  4. Step 4: Simplify right side
    139,729,758.48x = 14,849,351,008,542,654
  5. Step 5: Solve for x
    x = 14,849,351,008,542,654/139,729,758.48
  6. Step 6: Final answer
    x = 106,271,929.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.